Pugsley's Dead Reckoning, Including the Various Methods of Finding Course and Distance by Mercator and Middle Latitude Sailings: And Examination SpecialtyR.M. Pugsley, 1916 - 176ÆäÀÌÁö |
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... latitude 30 ¡Æ , departure 60 ' difference of longitude 120 ' . = ¡¤ DECIMAL POINT . The sign indicating by its position 7.
... latitude 30 ¡Æ , departure 60 ' difference of longitude 120 ' . = ¡¤ DECIMAL POINT . The sign indicating by its position 7.
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... Longitude is the distance any point on the earth's surface is east or west of the meridian of Greenwich measured on ... difference of longitude into departure or departure into difference of longitude , using Table 2 . Meridional parts ...
... Longitude is the distance any point on the earth's surface is east or west of the meridian of Greenwich measured on ... difference of longitude into departure or departure into difference of longitude , using Table 2 . Meridional parts ...
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... longitudes of the two points between which the course and distance is wanted , find their differences and name them after the direction the point lies to which the course is to be found . As the miles of longitude are not the same as ...
... longitudes of the two points between which the course and distance is wanted , find their differences and name them after the direction the point lies to which the course is to be found . As the miles of longitude are not the same as ...
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... longitude by subtracting the longitude of the ship from that of Barnegat light , convert it into miles and name it west , because Barnegat light is west of the longitude of the ship ... difference of latitude by subtracting the latitude 33.
... longitude by subtracting the longitude of the ship from that of Barnegat light , convert it into miles and name it west , because Barnegat light is west of the longitude of the ship ... difference of latitude by subtracting the latitude 33.
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And Examination Specialty Richard Marriotte Pugsley. EXPLANATION Find the difference of latitude by subtracting the ... longitude , 271'.0 E. , which is subtracted from the longitude of the point left , because the ship has sailed east ...
And Examination Specialty Richard Marriotte Pugsley. EXPLANATION Find the difference of latitude by subtracting the ... longitude , 271'.0 E. , which is subtracted from the longitude of the point left , because the ship has sailed east ...
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add the logarithm Barnegat light Cape Horn chief mate coastwise steam vessels compass course corresponding number course and distance COURSE NUMBER DEAD RECKONING deck department difference of latitude difference of longitude Dist distance column Enter Table EXAMPLE NUMBER EXPLANATION Find Find the course Find the difference gives the logarithm latitude 35 latitude 55 latitude and departure latitude and longitude latitude and takes latitude by subtracting latitude column logarithm cosine logarithm secant logarithm tangent Long longitude 74 mate of ocean Mercator sailing meridional difference Middle lat middle latitude sailing mile and find miles and name name it south navigation nearest mile ocean or coastwise ocean steam vessels original license pilot point in latitude point left Prop proper difference PUGSLEY'S sail vessels Sandy Hook ship 38 ship has sailed signals subtract the logarithm subtracting the latitude Table 3 take take the meridional tang third mate traverse table white light